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Add 'depth' argument to CTRSTACK() macro, which allows to reduce number

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of ktr slots used. If 'depth' is equal to 0, the whole stack will be
logged, just like before.
This commit is contained in:
Pawel Jakub Dawidek 2005-08-29 11:34:08 +00:00
parent 80447bf701
commit e37a499443
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=149574
3 changed files with 12 additions and 8 deletions
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2
sys/kern/kern_lock.c
View File

@ -168,7 +168,7 @@ lockmgr(lkp, flags, interlkp, td)
{
struct stack stack; /* XXX */
stack_save(&stack);
CTRSTACK(KTR_LOCK, &stack, 1);
CTRSTACK(KTR_LOCK, &stack, 0, 1);
}
#endif

10
sys/kern/subr_stack.c
View File

@ -115,7 +115,8 @@ stack_sbuf_print(struct sbuf *sb, struct stack *st)
#ifdef KTR
void
stack_ktr(u_int mask, const char *file, int line, struct stack *st, int cheap)
stack_ktr(u_int mask, const char *file, int line, struct stack *st, u_int depth,
int cheap)
{
const char *name;
long offset;
@ -136,12 +137,15 @@ stack_ktr(u_int mask, const char *file, int line, struct stack *st, int cheap)
ktr_tracepoint(mask, file, line, "#2 %p %p %p %p %p %p",
st->pcs[12], st->pcs[13], st->pcs[14], st->pcs[15],
st->pcs[16], st->pcs[17]);
} else
for (i = 0; i < st->depth; i++) {
} else {
if (depth == 0 || st->depth < depth)
depth = st->depth;
for (i = 0; i < depth; i++) {
stack_symbol(st->pcs[i], &name, &offset);
ktr_tracepoint(mask, file, line, "#%d %p at %s+%#lx",
i, st->pcs[i], (u_long)name, offset, 0, 0);
}
}
}
#endif

8
sys/sys/stack.h
View File

@ -47,13 +47,13 @@ void stack_zero(struct stack *);
void stack_print(struct stack *);
void stack_sbuf_print(struct sbuf *, struct stack *);
#ifdef KTR
void stack_ktr(u_int, const char *, int, struct stack *, int);
#define CTRSTACK(m, st, cheap) do { \
void stack_ktr(u_int, const char *, int, struct stack *, u_int, int);
#define CTRSTACK(m, st, depth, cheap) do { \
if (KTR_COMPILE & (m)) \
stack_ktr((m), __FILE__, __LINE__, st, cheap); \
stack_ktr((m), __FILE__, __LINE__, st, depth, cheap); \
} while(0)
#else
#define CTRSTACK(m, st, cheap)
#define CTRSTACK(m, st, depth, cheap)
#endif
/* MD Routine. */